I own the two pieces mentioned, and entered a bit of a discussion about the name on the IoWSG forum.
We never really got to the bottom of it, Seawood was a name that Elizabeth mentioned for this range, but as it never was an official range, it sort of faded into obscurity and has never been used officially.
To my knowledge, this thread of mine was the only time the name "Seawood" ever came up, and it does seem to have been passed around a little. I did push for a definitive answer, but got no replies.
I suppose it would be perfectly ok to call it Seawood, but I still think it was possibly a name Elizabeth came up with, at a later date than the glass was made.
It was the early experimental range that ended up being made a bit more simple, to be Aurene.
It came in two colourways, one being the teal blues of Mdina, because they were using up the colours they had brought back from Mdina, but they also used the darker cobalt blue of IoWSG.
The pieces are pretty much the Aurene pattern, but have a partial casing and a load of thin strapping around the partial casing.
Here is an image of;
A Blue Aurene, a Gold Aurene, 3 Cobalt blue "Seawood"; 3 Mdina teal "Seawood".
The pieces mentioned, bought from the archives, are the stopperless bottle and the hexagonal pot.